Two vaccines under development protect mice against the Zika virus for at least two months, a new study shows.
By Katie Worth, FRONTLINE
In northern Brazil, mothers debate whether vaccines triggered the microcephaly outbreak versus the suspected cause: mosquito-borne Zika virus.
By Nsikan Akpan
What is Zika virus? How early can a doctor spot microcephaly? Did you know the U.S. already has a virus causing thousands of microcephaly cases each year?…
By Nsikan Akpan
Scientists find experimental evidence for the first time that a vaccine can make a virus worse.
By Catherine Woods
Researchers at the Wistar Institute in Pennsylvania discover a mutation to explain why last year’s flu vaccine failed for so many.
By Caleb Hellerman
Is the world prepared to fight the next Ebola outbreak? NewsHour provides an update on Ebola vaccine testing in West Africa.
How did one patient in South Korea instigate the largest MERS outbreak to-date outside of the Middle East?…
By Lauren Neergaard, Associated Press
WASHINGTON — The miserable flu season is winding down but not quite over yet, health officials said Wednesday, even the government picked what it hoped would be a better vaccine recipe for next fall and winter.
By Nicholas Riccardi, Associated Press
DENVER — As vaccine skeptics fight laws that would force more parents to inoculate their kids, they are finding unexpected allies in conservative Republicans.
By Julie Pace, Associated Press
WASHINGTON — For a pair of first-time presidential hopefuls, the sudden injection of the childhood vaccine debate into the 2016 campaign is a lesson in how unexpected issues can become stumbling blocks. Long-held positions can look different under the glare…
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